The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2013
Filed:
Oct. 14, 2008
Applicants:
Masahide Okamoto, Yokohama, JP;
Osamu Ikeda, Yokohama, JP;
Inventors:
Masahide Okamoto, Yokohama, JP;
Osamu Ikeda, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A Ni plating is applied on a base metal in a metal strip form, and a brightener-free Sn-(1 to 4% by mass)Cu plating is applied on the Ni plating. The metal strip is heat-treated at a temperature at or above the melting point (solidus line) of a Sn-(1 to 4% by mass)Cu alloy to form a Cu-Sn compound layer or a Cu—Ni—Sn-compound layer on the Ni plating layer and a Sn layer or a Sn—Cu-ally layer on the Cu—Sn compound layer or the Cu—Ni—Sn-compound layer. The metal strip is further fabricated into a connector.